Symmes also claimed that this inner surface of the concentric spheres in his Hollow Earth would be lit by sunlight reflected off of the outer surface of the next sphere and would be livable, being a “warm and rich land, stocked with thrifty vegetables and animals if not men.“ He ultimately concluded that the Earth, as well as every celestial orbicular body that existed in the universe, visible or invisible, which partook in any degree of a planetary type, from the smallest to the greatest, are all established, in a greater or lesser degree, in a compilation of spheres.


Symmes wasn’t the best lecturer. He felt uncomfortable as a public speaker. Still, he preserved. He started making disciples and soon his ideas began to take shape into the public’s minds. The book Symzonia appeared in 1820 and has often been associated with him.

It describes the voyage of Captain Seaborn from 1817 who set out for the South Pole in order to prove the theory of an internal world, published by Captain John Cleve Symmes. Afraid of the attitude of his crew, he does not fully inform them of his desire, hiring them rather for a commercial journey in the South Seas. The crew discover the internal continent, which is named Symzonia in honor of Symmes.

The new world appears to be of a garden paradise, consisting of:

[…] gently rolling hills within an easy sloping shore, covered with verdure, checkered with groves of trees and shrubbery, studded with numerous white buildings and animated with groups of men and cattle, all standing in relief near the foot of a lofty mountain, which in the distance reared its majestic head above the clouds.

The internals are described as a peaceful race, their power emanating from the people. They were led by a “Best Man“ and a council of one hundred, elected for their modest and exemplary merit. The most fundamental characteristic of the internals was their simple life style, as they despised material gain and sensual pleasures.

They lived equally, without the desire for wealth or carnal pleasures, while producing only what is needed for the society. The society is described as living for the unified good and prosperity of all of their people. This fairness applied even to their diet, for they were vegetarians. Because of the contrast between the principles and values of the two races, the “Best Man“ orders Seaborn to leave this paradise inside the Earth, along with his crew, as described:

It appeared that we were of a race who had either wholly fallen from virtue, or were at least very much under the influence of the worst passions of our nature.

Even though Symmes and his disciples were not able to reveal completely palpable evidence for their claims, there must be more than a grain of truth in it as countless people experience visions of this inner place and gain some kind of spiritual guidance towards it.

In our current state of understanding, we realize that planet Earth holds a lot of mysteries waiting to be uncovered. The earth is said to be almost eight thousand miles in diameter, and the deepest excavations ever attempted only reached half a mile below its surface. We are, therefore, extremely ignorant of the nature and structure of the interior of this vast mass the earth holds and might remain so unless those intraterrestrial beings decide to make the first step towards us.

When will the ice be broken and the truth uncovered?